@misc{indiciae2793ff18b383,
  title = {Widespread natural perchlorate in unsaturated zones of the southwest United States},
  author = {Balaji Rao and Todd A. Anderson and Greta J. Orris and Ken A. Rainwater and Srinath Rajagopalan and Renee M. Sandvig and Bridget R. Scanlon and David A. Stonestrom and Michelle Ann Walvoord and W Andrew Jackson},
  year = {2007},
  doi = {10.1021/es062853i},
  url = {https://pubs.usgs.gov/publication/70029966},
  note = {Source identifier: 70029966}
}